<div class="o2_im_out">
  <div class="o2_im_chat_list">
    <!--top-->
    <div class="o2_im_chat_list_top">
      <div class="add"></div>
      <div class="search_out">
        <div title="搜索" class="search_icon"></div>
        <div class="search_input_out">
          <input type="text" x-webkit-speech="x-webkit-speech" placeholder="请输入搜索" class="search_input">
        </div>
      </div>
    </div>

    <!-- chat list -->
    <div data-o2-element="chatItemListNode">

    </div>

  </div>
  <div class="o2_im_chat_content" data-o2-element="chatNode">

  </div>
</div>